| Coord 2000 | 20047+4938 |
Discov num | ES 2688 |
Comp | BC |
Coord arcsec 2000 | 20 04 40.11 +49 38 27.8 |
||||
| Date first | 1909 |
Date last | 2015 |
Obs | 5 |
||||||
| Pa first | 159 |
Pa last | 169 |
P.A. Now (θ) | 169° |
||||||
| Sep first | 13.9 |
Sep last | 15.4 |
Sep. Now (ρ) | 15.4" |
||||||
| Mag pri | 10.41 |
Mag sec | 15.10 |
delta mag (ΔM) | 4.69 |
Spectral class | A2 (white) |
||||
| Pri motion ra | +007 |
Sec motion ra | |||||||||
| Pri motion dec | -016 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
| Show | 20 04 40 +49 38 31 | KU 58 AB | 2018 | 17 | 186 | 2.9 | 10.23 | 10.41 | 0.18 | ||||
| Show | 20 04 40 +49 38 28 | ES 2688 BC | 2015 | 5 | 169 | 15.4 | 10.41 | 15.10 | 4.69 | <=== |
| Precise pa | 168.8 |
Precise sep | 15.392 |
Constellation | Cygnus |
Tycho2 | 3567-00721-1 |
||||
| Gaia DR2 | 2087754985222802048 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20047+4938 | ES 2688 | BC | 1909 | 1 | 159 | 13.9 | 9.00 | 13.70 | 200408.57+493800.0 | ||
| 20047+4938 | ES 2688 | BC | 1999 | 2 | 151 | 16.4 | 10.41 | 15.10 | D | 200440.11+493827.8 | |
| 20047+4938 | ES 2688 | BC | 2003 | 3 | 152 | 18.0 | 10.41 | 15.10 | D | 200440.11+493827.8 | |
| 20047+4938 | ES 2688 | BC | 2011 | 4 | 169 | 15.7 | 10.41 | 15.10 | D | 200440.11+493827.8 | |
| 20047+4938 | ES 2688 | BC | 2015 | 5 | 169 | 15.4 | 10.41 | 15.10 | A2 | 200440.11+493827.8 |